Better gas = more power, wtf?

You're only about 3 years too late to the party

 

Late to the party here, but I have had the same experience. My Toyota mechanic buddy told me that the ECU uses the knock sensor to adjuct ignition timing. Based on those readings, it "learns" what the optimum settings are. From time to time, it rechecks and adjusts. This will affect your output.

EDIT: Pugga, you beat me to it!

 

Keep in mind the shitty corn fuel you guys burn is very inconsistent from fill up to fill up.

 

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It is true that ethanol is not as good as pure gas , but your comment Is ridiculous.

 

It is completely true.

Some suppliers (generally low cost chains and indies) blend the ethanol in-tank rather than at the depot. This can result in a very inconsistent mixture that may go further and further off with time, or may improve with time, but the net result is inconsistency.

Also, stations that are fairly low volume have their fuel in the tanks for a longer time, which increases the amount of water the fuel picks up from the atmosphere.

 

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My experience is that ethanol is VERY bad in motorcycles, and other small engines. You can see the corrosion in just the fuel tank lid on a motorcycle.

For that reason I use pure gasoline in bikes, lawn mowers, etc, and only use ethanol in a car every other fill up which roughly keeps the percentage down to > 5%.

It is wiser not to use fuel with ethanol AT ALL in older vehicles because it can destroy older hose connections submerged in an older gas tank. (This happened to an older 1987 Chevy Astro I had. Hose fell apart)

I'll try and run pure gasoline in a car that is not driven as much, and parked a lot, but I'll fill up with it if I'm covering over 100 miles and then fill up going home with pure gasoline.